Manchester should be the Breasts !!
Look at the name Mamucium :
The name MAnchester originates from the Ancient Roman name Mamucium, thought to be a Latinisation of an original Celtic name meaning "breast-like hill" from mamm- = "breast")

Manchester is the also the fastest growing UK city (it was in 2007 anyway !!)
According to Brewer's Phrase and Fable, Manchester was known to the Romany people, the travellers and tinkers alike as "Sharper's Town" or in their tongue Jinney Mengreskey gav (literally; the home of card sharps, swindler's and con-men) and the whole of Lancashire as Chohawniskey tem or "Witch's Country".

While I was researching the history of Romany peoples in Manchester Central Library, I came across an interesting reference in a book called Manchester & Its Regions (K.J. Dormer & J. H. Tallis) to the invasive species of flora during the period.
It reported as follows;
"It must be difficult to decide the manner in which an alien species has arrived. In our area for instance, it is a temptation to attribute an occurrence of Jimson Weed (Datura stramonium - aka: Thorn Apple, or Angels Trumpets) to the presence of imported cotton, but the fact that gypsies have for centuries used the seed of the plant medicinally is enough to raise an alternate suggestion".